Assiignok



y 1933- c. D. KNOWLTON BOX AND BLANK THEREFOR I Origirial Filed Aug. 29, 1927 2Sheets-Sheet 1 y 1933- c. D. KNOWLTON 1 BOX AND BLANK THEREFOR- Original Filed Aug. 29, 1927 2.Sheets-Sheet 2 Patented July 1933 I UNITED CUTLER OW TON, or nnv nLY; ivmssircnusnr'rsi -Asjre1 von we nonsun. srnneun-conrommrom or rxmv, nAssxcnnsn'rzrsfn'conronnrrox or r/nis'sA-j j 'crrnsnrrs 1 Box Ann 31. 1 1: manages 1 original application filed August 29, 192?, Serial no. 216,220. Divided" and'fth applicationfilcd February? 10, 1930. Serial No. 427,206.

i This invention relates to boxes andblanks Thepresent application isa divisionof that filed ,in the =United States Patent Oifice'in from which'said boxes are made, being specially concerned, with the formation of a smooth, finished edge wherev the ,box-materia-l is divided, as-at the corners of the box, 1

and with'the'strengthening of such corners.

my name on August 29, 1927, with the Serial No. 216,220, this original application being directed to making the herein dlS- closed boxes and blanks. Said application,

onJune 16,1931, became Letters Patent No. 7

em No. 1,476,549, Smith,December 4, 1923,

hen boxes ofthet pe disdosed in Pat and consisting of a pasteboard shell covered with pa-per,are pro'duced by-assembling the less precautionsare taken to hidethem, un-- shell-material and vcover-material before the boxes are set up, there are left exposed, un-

sightly' strips of shell-material. This may occur, for example, atthe vertical edges of the wings which overlie the corner-laps at the endsof the boxes. An object of the invention is'to'attain an ,efiective conceal mentofthe shell-edges, providing'to this In the cover-material attached to one of its jfaces, has cuts which extend partly throughfrom oppositev sides =in proximlty to creases separating the areas whichj'aretofurnish-thew g g bled by being-pressed together and are adbox-walls, as" those creases defining the cor: ner-laps.- The. cuts are herein shown as on opposite sides of such creases; The shellmaterial -'is divided in a plane joining the bottoms of thecuts, thisplane being pref- JOf 'thesheet-and within the shellsrnaterial. E'There is thus furnished a reducedextension which" erably parallel to the outer faces;

istobe; secured to. an adjacent surfac I the preferred box-o ganization, this adja-{ cent surface is upon, the, extension itself, it being folded inwardly in a novelmanner, and appearing asfsecured to a separate boxelement, This element may be a corner-lap,- while the extension is a part of an end wing.=

Uponjtbis extension, the cover-material. is

exposed i theLfoldedF v dg I th raw I edge of the shell entirelyiconcealed In the accompanying drawings, 7 .Figs. 1 and '2' suggest,

diagrammatically through the scoring mechanism of the appa- Fig. 5 shows the initial position;

Fig/6 1s a perspective view ci a. portion v of a box made from the blank :of this inven' tion; andv A 'Fig. 7 isa'si1nilar view of the box, of such invention. 1 it hm new tion a box is referred to, itis to be under:

enlarged longitudinal section" through the splittingmechanism';

forming mechanism in its stood that-the invention.applies aswellto box covers as to the bodies;

' In making the box of Fig. .dby; a

oils-production method, 'I prefer, though. it is not essential tothe invention, to advance a web ofpasteboard A 'or other' material suitablefor the box-shell',3this web being;

mounted upon a spindle 10, whileadjacent to it a web of such cover-material B as'paper is'arrangedfto turngnpona spindle 12.. Glue device 14', after whichsaid webs arefass'emvancedby a pair of rolls 16,116. [The coverweb may. be somewhat wider than the shellwhich isfatthe inside of; the box,-by opposite. folclingfabutinents 18, but one; of which is shown. By a mechanism 20 the*asser nbly is provided? with longitudinal creases 6, 6, which mark the junctures 'of; the I box-bot toms 0 andsidewings' cl and between theend:

side wlngsfdiand the corners-laps or other appropriate adhesive is applied ;tothe inner face-ofjone-of the Iwebs, as B, by a 'weband 'is shownas turned over at a" and forced vagainst the under side oftheyshell, ll

roll mechanism 24 each box-section of the assembly is scored at; its opposite S1d6S.', At the lower or shell-side, arcuate knives. 26,26

cent ends,,each line i is joined to the vertical plane thron'ghthe companion line} 71; 'afn' l V inclined line j w'hifch is scored in the mate rial by a knife 30.1 At its opposite or outer 1 *end;-"eaoh 'linei'isishorter than {the correspending lineb," and herean inclined js'core aline"kf'conhectsfthe lines 2' andjh, -being'; pro;

' awed y v ife 32; The ,lines '1', and 16 ,which are'ion" the same corner-lap 'coverg outwardlyto, the line i Which'conneets them. The bottoms; of all thesegscores terminatein a cominon pl'ane 'l parallel to the outer faes a of the sheett-fThis plane may be located: at-

about one third of the distance' through the I assembly from the cover-paper's side. As

will. hereafter "appearf more, clearly, there} maybe i conditions which 1 call for a change "inftherelation between the depths ofrthe,

seor'es j Afterbeingscored;v the assembly is acted upon by cutting mechanism 34, which 7 divides itinto individual box blanks C, the separation oceurring along transverse lines passing through the junctures of the scores 7'." The partiallycompleted "blanks thusdivided' 'are'shown as accumulated in a stacklwithin a jreceiver36, j i

The blanks maynowhave the a marginal extension of reduced thickness created upon each extremity of the end wing assembling operation," are advanced between opposite pairs ofgrotatable rolls 38 and 407;

Each roll 38 -has apair'of projections 42', so

7 arrangedthatin conneoti o'nfwith a register;

' ing depression in the' corresponding bed-roll T {it will act-to force'apartoneof'thegcorner- V laps and conneotedgendwing ina'dire'ction" v substantiallyat rightiangles to the. plane ofthe blankl- The force applied in1thisYdi-' rection causes thematerialtoteaigfirst along the; scorej an'd the outer extremity ofthe finally'upon' theflinef'k to'the termination of the" line hit, Throughout {this fdivisionygthe pasteboardsplits in substantially thelplane A :05.

, V corner-laps separated from the end wings towhich'theyare GQnnected,-*at the same time there being 3'0 and 32",and therefore to the bottoms of Y The inclinationof 'the scores'andlc at the beginning V and end of each "divided area reduces the] tendency of thejdivision ortear toI-leave-the i scored lines and" mutilate thecoyer=papr upon thepmarginalextension. The division of each-corner-lap ifr orn theend-wingateaoh. 1- d mhe l k ii yrb comp t iby a mived deflecting rail 44, beneathwhich the thescoreswhich they produce.

corner-la passes While the. .mu-pr'ojeti n 42isstil pressing. it down. There is 'thus' produced fupon" each; eXtItemityof each I wing a comparatively j thin extension orvv flap its; outer face "completely covered 7 with paper; 5 Within; which "is a substantial thicki ness of 'shell'ematerial withits inner face :ap-;

"proximately parallelito' the paper; 011 the "associated corner lap there 15a 7 similar} QXfitension *1", which; in the; *present instance, I thicker "than n}; i Th erails4 4i;bringfthe fcor ner-laps. to positions substantially at Y right angles "to theremainder of-the blank :.and" there retain them whileea'ch end win g lupon its; under ,or shell'-sid'e," is acted upon by {a 'i gluing mechanism 46 which coats the sur face, including the extensions; #From :f the gluing mechanism the blankisfca rried upon 7 a vertically reciprocatory form 48 offalset ting-up 'nfiechainism'Q150: -,The rem rises; iwith the blank upon it; between opposite ebutmem 52, 52, whichfgturndown-the side wings d to ve'rtical positions, at ther'fsame at f each side of} each plunger. Thisi com-l box 1); Oneextremit'y .of this bo'xis' shown in Fig-"6.

f invention'preferably assumes'the'form l illustrated infFig'. {7, Here :we'-'*have.the same general 'box structure"-'D; asit/is in; K

off s'ub's'tantially half the thickness-eithe I assembly and, aftergluing 'is doubled upon H :itself within 7 the recess [which-"has been f I formed, to lie"'wi'th fits'faceifiush with the i shred in this" position before theend wing,-,

Figi fig but the end-wing extension 0 iszmadeinner urfajce of the wall ccarrying itand 'sejnelediiig the inner folded-over iportio'ns fis' l attaehed'flto the; c'orner-laps; The-inner; end of theiextensifon'i's shown as abuttinga'gainst the shoulder formed between saidemnsimi I an thebo'dy time shell-material. seen" anarrangement provides an 7 its whee edee any finished,jwi th-jonly and' a-l'so giving' "uniform thj'iokn'ess of tilt fpletes theformation from-theblank o of aw i a j 1 the wall which carries it. i

/ wing, so that its surface issmooth throughout. The corner-lap-extensions 9" lie along the lower edges of the end walls, performing 'no special function. f

Having described my invention, what I claimas new and desire to secureby Letters Patent of the United States is:

material of substantially uniform thickness, said extension being-folded upon-itself along -material of substantially uniform thickness, said extension being folded upon itself and nishing side wings, corner-laps projecting therefrom, end wings and extenslons from' substantially the entirelength ofthe-wall to which it is joined and secured. in this position. f'

2. A boxcomprising wallsincludingshelh material and cover-materiahthere being an extension from a Wallincluding the. covermaterial and a reducedportion of the shell-j secured in this position' andfto an adjacent surface with the cover-material exposed at theedge of the fold. h

3. Abox comprising walls including shellmaterial, there being at one edge of a wall j a portion of the shell-material thinner than the body thereofto'producea recess, said thinner portion being folded upon itself inr to the recess andsecured in this position and V to anadjacent wallof the-box.

4. A box comprising walls including shellh faces a sheet ofcove'nmaterial and having material, there being at one edge ofa wall a portion of'the'shell-material equal in thickness to approximately one-half the body; thereof, said portion being folded inwardly upon itself and adhesivelyl secured with its face substantially flush with 5., A box comprising she11-materia1ffurthe end Wings including shell-material of less thickness than the body of the wings,

said extensionsbeing secured to the corner-.

laps and reaching from thebottom of the box adjacent to the top of said cornerJ P A 6. A box comprising wallsincluding shell material and cover-mater1al,there beingan extension from a wall including the covermaterial and a reduced portion of the shellmaterial of substantiallyuniform thickness, said extension beingfolded'upon itself'and having the cover-materialsecured to an ad-i jacent surface with the rounded portion the inner faceof the cuts lying adjacent to the corner-lap creases, the shell-material being divided sub- .formed by the foldexposed at the exterior of the box along the edge of the wall. I v 7. A box comprisingside wings, cornerlaps projecting therefrom, end wings, the

material, extensions from the end 'wings,

each extension having its, inner face: furnished by a surface of the shell-material substantiallyparallel-to the outer face and 7 spaced therefrom by a distance approximatelyi'equal to'one-ha'lf the thickness "of the body of the shell-material, and the inner faces of the extensions being folded, and" secured to themselves and to the corners laps.

8. A box-blank comprising a sheet of I box-.materialhaving creases separating the 'areasfwhich are to furnish the boxwalls and corner-laps, there being cuts at its oppo'-}"' site fac'esextending partly. through the sheet at opposite sides of the corner-lap,-creases, 7,

said. sheetbeing :divided subtantially in a f. 9. A box-blank comprising a sheet of boxcreases having .at'its' opposite faces cuts ex- 1 plane joining the. bottoms of'the cuts tofur 'nish surfaces opposed: in the. blank. 50 material having ,corner-la'p s defined by tending adjacent to the corner-lap-creases corner la-ps defined bycreases, with acut extending through the "cover-material and partly through the shell-material, and a cut extending partly through V the shell-material from the side-opposite the cover-material,

stantiallyin a plane joiningthe bottoms of the cuts to, furnish opposed surfaces. l1. Abox-blank comprising a bottom-por- 1 tion, side wings projecting from the bottom f portion and having corner-laps, end wings :projecting. from the bottom-portion, there being creases between the end wings and corner-laps, scores extending along said creases, and a score adjacent to each of the crease-scores, the blank-material being divided between each of'the pairs of adjacentscores to separate the end wings and cornerlapsand to provide reduced margins.

is CUTLER KNOW-UPON. f'

side wings and corner-laps includingshell- 

